CN104284866A - Water treatment compositions and methods of use - Google Patents

Water treatment compositions and methods of use Download PDF

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Publication number
CN104284866A
CN104284866A CN201380022940.4A CN201380022940A CN104284866A CN 104284866 A CN104284866 A CN 104284866A CN 201380022940 A CN201380022940 A CN 201380022940A CN 104284866 A CN104284866 A CN 104284866A
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Prior art keywords
flocculating agent
water
polysaccharide
aluminium
containing aluminium
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CN201380022940.4A
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CN104284866B (en
Inventor
F·科内博
E·J·尼寇尔斯
J·R·斯科特
R·维索特
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Dobel Chemical Co
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Halosource Inc
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/105—Phosphorus compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/32—Hydrocarbons, e.g. oil
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/32—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • C02F2103/343—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the pharmaceutical industry, e.g. containing antibiotics
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
    • C02F2103/365—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds from petrochemical industry (e.g. refineries)
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/04—Disinfection

Abstract

Methods for clarifying water, reducing turbidity of water, and removing phosphate from water include adding a water treatment composition having an aluminum-containing coagulant, and a natural non-charged polysaccharide, such as guar. The aluminum-containing compound can include polyaluminum chloride, aluminum chlorohydrate, polyaluminum chlorohydrate, aluminum sulfate, sodium aluminate, polyaluminum sulfate, polyaluminum silicate chloride, polyaluminum silicate sulfate, or a combination thereof.

Description

Water treatment composition and uses thereof
The cross reference of related application
This application claims the rights and interests of the U.S. Provisional Application No.61/616943 that the U.S. Provisional Application No.61/798333 and 2012 that submits on March 15th, 2013 submits 28, on March, apply at this clearly by reference to introducing for these two.
Background technology
The suspended substance removed in water relates to the problem of municipal water treatment plants, industrial water treatment plants, environment rainwater and recreational water.Cohesion and flocculation are the known methods removing suspended substance.Cohesion can be regarded as making the electric charge overbalance on suspended particle or be neutralized to make them start the initial methods of assembling thus.Condense usual and flocculation, sedimentation or filtration combination.Flocculation to be aggregated particles be comparatively agglomerate.Market there are at present many chemical contribute to cohesion and/or flocculation.This wherein has metal-salt, such as polymerize aluminum chloride, Tai-Ace S 150, ferric sulfate and iron(ic) chloride.Cationic polymers such as chitosan also can be used as flocculation agent.Chitosan is the polymkeric substance stemming from natural chitin.The linear polysaccharide that the 2-acetylaminohydroxyphenylarsonic acid 2-deoxidation D-Glucose unit of α-(the 1-4)-connection of chitin by being naturally present in invertebrate exoskeletons, particularly in the crustacean of ocean forms.The deacetylated generation chitosan of chitin chemistry, it is the multipolymer of 2-amino-2-deoxidation D-Glucose and 2-acetylaminohydroxyphenylarsonic acid 2-deoxidation D-Glucose unit.
Although it is known for using metal-salt can reduce water turbidity, general water clarity of wishing that maintenance is wished while reducing total metal-salt usage quantity.Therefore, seeking the novel method using metal-salt always.
Summary of the invention
There is provided this general introduction to introduce the selection of concept in simplified form, embodiment part below further describes by described concept.This general introduction does not intend to confirm the key character of required theme, does not intend by the scope helping determine required theme yet.
Some embodiments relate to by with water treatment composition process water for primary water with reduce the composition of water turbidity, described water treatment composition is by guar gum and polymerize aluminum chloride, chlorination hydroxyl aluminium, polyaluminium hydroxyl aluminium, Tai-Ace S 150, sodium aluminate, polyaluminium sulfate, aluminum chlorate of polymerized silicic acid, poly aluminium sulfate silicate or their combination composition, so that by the insoluble suspension of collecting shear stable on filtration medium or in filtration medium and/or the water-soluble floss of part and aggregate and make their agglomerates and be removed subsequently, described filtration medium allows the long-time use of easier more effective backwash and improvement.Described method comprise to containing insoluble suspension and/or the water-soluble dissolved material of part water in add the water treatment composition of significant quantity, and allow the insoluble or solvable matter interaction of water treatment composition and suspension to allow described material agglomerate and sedimentation under gravity and/or to rise to the surface.The material of agglomerate can by any one of various ways known in the art as filtration, gravity settling, centrifugal, cyclonic separator, vacuum filtration or separated from water by flotation and skimming.
Water treatment composition can by comprise aluminum contained compound as polymerize aluminum chloride, chlorination hydroxyl aluminium, polyaluminium hydroxyl aluminium, Tai-Ace S 150, sodium aluminate, polyaluminium sulfate, aluminum chlorate of polymerized silicic acid, poly aluminium sulfate silicate or their combination and be derived from plant, liquor that the water-soluble natural non-chemically polysaccharide derivative of microorganism or animal forms forms.
An exemplary of water treatment composition comprises polysaccharide guar gum and polymerize aluminum chloride.
Another exemplary of water treatment composition comprises guar gum and Tai-Ace S 150.
Another exemplary of water treatment composition comprises guar gum and chlorination hydroxyl aluminium.
Another exemplary of water treatment composition comprises guar gum and polyaluminium hydroxyl aluminium.
Another exemplary of water treatment composition comprises guar gum and sodium aluminate.
Another exemplary of water treatment composition comprises guar gum and polyaluminium sulfate.
Another exemplary of water treatment composition comprises guar gum and aluminum chlorate of polymerized silicic acid.
Another exemplary of water treatment composition comprises guar gum and poly aluminium sulfate silicate.
Another embodiment of water treatment composition comprises and is derived from plant, the free-flowing solid particle of water-soluble natural non-chemically polysaccharide derivative of microorganism or animal or powder, and the free-flowing solid particle of described polysaccharide or powder and Tai-Ace S 150 (alum), polymerize aluminum chloride, chlorination hydroxyl aluminium, poly aluminium sulfate silicate, aluminum chlorate of polymerized silicic acid, polyaluminium sulfate, sodium aluminate or the particle of polyaluminium hydroxyl aluminium and/or the free-flowing solid of powder are mixed together.
Water treatment composition can also comprise sanitas to prevent the microorganism growth comprising bacterium, fungi and/or yeast.Sanitas can include but not limited to Sodium Benzoate, potassium sorbate, p-Hydroxybenzoate, Sorbic Acid and phenylformic acid.
The polysaccharide of composition water treatment composition can comprise the combination of following natural non-derived polysaccharide: polygalactomannan, glucomannan, α-D dextran, xyloglucan, arabinoxylan, inulin, the linear polysaccharide of α-(1-3) alternately and α-(1-4) galactopyranose units, the linear polysaccharide of α-D-Glucopyranose glucosides connector element, the linear polysaccharide of α-D-Glucopyranose glucosides connector element, the heteropolymer of the glucosides connector element of α-(1-4)-2-acetylaminohydroxyphenylarsonic acid 2-deoxidation-D-Glucopyranose and α-(1-4)-2-amino-2-deoxidation-D-Glucopyranose.Although comprehensively thoroughly, typical example does not comprise guar gum and Viscogum BE, Sudan Gum-arabic, tragacanth gum, starch (straight chain and side chain), agar, carrageenin, pectin, xanthan gum, konjaku, Mierocrystalline cellulose, chitin and chitosan.
Water treatment composition can comprise commercial effectively for the natural non-derived polysaccharide combination of primary water, and also comprises polymerize aluminum chloride, chlorination hydroxyl aluminium, polyaluminium hydroxyl aluminium, Tai-Ace S 150, sodium aluminate, polyaluminium sulfate, aluminum chlorate of polymerized silicic acid, poly aluminium sulfate silicate or their combination.
Another embodiment of water treatment composition is effectively made up of for the polymerize aluminum chloride of primary water and the combination of polysaccharide or polysaccharide commercial, described polysaccharide is selected from following natural non-derived polysaccharide: polygalactomannan, glucomannan, α-D dextran, xyloglucan, arabinoxylan, inulin, the linear polysaccharide of α-(1-3) alternately and α-(1-4) galactopyranose units, the linear polysaccharide of α-D-Glucopyranose glucosides connector element, the linear polysaccharide of α-D-Glucopyranose glucosides connector element, the heteropolymer of the glucosides connector element of α-(1-4)-2-acetylaminohydroxyphenylarsonic acid 2-deoxidation-D-Glucopyranose and α-(1-4)-2-amino-2-deoxidation-D-Glucopyranose.Although comprehensively thoroughly, typical example does not comprise guar gum and Viscogum BE, Sudan Gum-arabic, tragacanth gum, starch (straight chain and side chain), agar, carrageenin, pectin, xanthan gum, konjaku, Mierocrystalline cellulose, chitin and chitosan.In addition or alternatively, the albumen Sodium Caseinate that milk can be used derivative and/or caseinhydrolysate and/or and homopolymer of amino acids, be such as polymerized L-glutamic acid.
Another embodiment of water treatment composition is effectively made up of for the chlorination hydroxyl aluminium of primary water and the combination of polysaccharide or polysaccharide commercial, described polysaccharide is selected from following natural non-derived polysaccharide: polygalactomannan, glucomannan, α-D dextran, xyloglucan, arabinoxylan, inulin, the linear polysaccharide of α-(1-3) alternately and α-(1-4) galactopyranose units, the linear polysaccharide of α-D-Glucopyranose glucosides connector element, the linear polysaccharide of α-D-Glucopyranose glucosides connector element, the heteropolymer of the glucosides connector element of α-(1-4)-2-acetylaminohydroxyphenylarsonic acid 2-deoxidation-D-Glucopyranose and α-(1-4)-2-amino-2-deoxidation-D-Glucopyranose.Although comprehensively thoroughly, typical example does not comprise guar gum and Viscogum BE, Sudan Gum-arabic, tragacanth gum, starch (straight chain and side chain), agar, carrageenin, pectin, xanthan gum, konjaku, Mierocrystalline cellulose, chitin and chitosan.In addition or alternatively, the albumen Sodium Caseinate that milk can be used derivative and/or caseinhydrolysate and/or and homopolymer of amino acids, be such as polymerized L-glutamic acid.
Another embodiment of water treatment composition is effectively made up of for the polyaluminium hydroxyl aluminium of primary water and the combination of polysaccharide or polysaccharide commercial, described polysaccharide is selected from following natural non-derived polysaccharide: polygalactomannan, glucomannan, α-D dextran, xyloglucan, arabinoxylan, inulin, the linear polysaccharide of α-(1-3) alternately and α-(1-4) galactopyranose units, the linear polysaccharide of α-D-Glucopyranose glucosides connector element, the linear polysaccharide of α-D-Glucopyranose glucosides connector element, the heteropolymer of the glucosides connector element of α-(1-4)-2-acetylaminohydroxyphenylarsonic acid 2-deoxidation-D-Glucopyranose and α-(1-4)-2-amino-2-deoxidation-D-Glucopyranose.Although comprehensively thoroughly, typical example does not comprise guar gum and Viscogum BE, Sudan Gum-arabic, tragacanth gum, starch (straight chain and side chain), agar, carrageenin, pectin, xanthan gum, konjaku, Mierocrystalline cellulose, chitin and chitosan.In addition or alternatively, the albumen Sodium Caseinate that milk can be used derivative and/or caseinhydrolysate and/or and homopolymer of amino acids, be such as polymerized L-glutamic acid.
Another embodiment of water treatment composition is effectively made up of for the Tai-Ace S 150 of primary water and the combination of polysaccharide or polysaccharide commercial, described polysaccharide is selected from following natural non-derived polysaccharide: polygalactomannan, glucomannan, α-D dextran, xyloglucan, arabinoxylan, inulin, the linear polysaccharide of α-(1-3) alternately and α-(1-4) galactopyranose units, the linear polysaccharide of α-D-Glucopyranose glucosides connector element, the linear polysaccharide of α-D-Glucopyranose glucosides connector element, the heteropolymer of the glucosides connector element of α-(1-4)-2-acetylaminohydroxyphenylarsonic acid 2-deoxidation-D-Glucopyranose and α-(1-4)-2-amino-2-deoxidation-D-Glucopyranose.Although comprehensively thoroughly, typical example does not comprise guar gum and Viscogum BE, Sudan Gum-arabic, tragacanth gum, starch (straight chain and side chain), agar, carrageenin, pectin, xanthan gum, konjaku, Mierocrystalline cellulose, chitin and chitosan.In addition or alternatively, the albumen Sodium Caseinate that milk can be used derivative and/or caseinhydrolysate and/or and homopolymer of amino acids, be such as polymerized L-glutamic acid.
Another embodiment of water treatment composition is effectively made up of for the polymerization sodium aluminate of primary water and the combination of polysaccharide or polysaccharide commercial, described polysaccharide is selected from following natural non-derived polysaccharide: polygalactomannan, glucomannan, α-D dextran, xyloglucan, arabinoxylan, inulin, the linear polysaccharide of α-(1-3) alternately and α-(1-4) galactopyranose units, the linear polysaccharide of α-D-Glucopyranose glucosides connector element, the linear polysaccharide of α-D-Glucopyranose glucosides connector element, the heteropolymer of the glucosides connector element of α-(1-4)-2-acetylaminohydroxyphenylarsonic acid 2-deoxidation-D-Glucopyranose and α-(1-4)-2-amino-2-deoxidation-D-Glucopyranose.Although comprehensively thoroughly, typical example does not comprise guar gum and Viscogum BE, Sudan Gum-arabic, tragacanth gum, starch (straight chain and side chain), agar, carrageenin, pectin, xanthan gum, konjaku, Mierocrystalline cellulose, chitin and chitosan.In addition or alternatively, the albumen Sodium Caseinate that milk can be used derivative and/or caseinhydrolysate and/or and homopolymer of amino acids, be such as polymerized L-glutamic acid.
Another embodiment of water treatment composition is effectively made up of for the polyaluminium sulfate of primary water and the combination of polysaccharide or polysaccharide commercial, described polysaccharide is selected from following natural non-derived polysaccharide: polygalactomannan, glucomannan, α-D dextran, xyloglucan, arabinoxylan, inulin, the linear polysaccharide of α-(1-3) alternately and α-(1-4) galactopyranose units, the linear polysaccharide of α-D-Glucopyranose glucosides connector element, the linear polysaccharide of α-D-Glucopyranose glucosides connector element, the heteropolymer of the glucosides connector element of α-(1-4)-2-acetylaminohydroxyphenylarsonic acid 2-deoxidation-D-Glucopyranose and α-(1-4)-2-amino-2-deoxidation-D-Glucopyranose.Although comprehensively thoroughly, typical example does not comprise guar gum and Viscogum BE, Sudan Gum-arabic, tragacanth gum, starch (straight chain and side chain), agar, carrageenin, pectin, xanthan gum, konjaku, Mierocrystalline cellulose, chitin and chitosan.In addition or alternatively, the albumen Sodium Caseinate that milk can be used derivative and/or caseinhydrolysate and/or and homopolymer of amino acids, be such as polymerized L-glutamic acid.
Another embodiment of water treatment composition is effectively made up of for the aluminum chlorate of polymerized silicic acid of primary water and the combination of polysaccharide or polysaccharide commercial, described polysaccharide is selected from following natural non-derived polysaccharide: polygalactomannan, glucomannan, α-D dextran, xyloglucan, arabinoxylan, inulin, the linear polysaccharide of α-(1-3) alternately and α-(1-4) galactopyranose units, the linear polysaccharide of α-D-Glucopyranose glucosides connector element, the linear polysaccharide of α-D-Glucopyranose glucosides connector element, the heteropolymer of the glucosides connector element of α-(1-4)-2-acetylaminohydroxyphenylarsonic acid 2-deoxidation-D-Glucopyranose and α-(1-4)-2-amino-2-deoxidation-D-Glucopyranose.Although comprehensively thoroughly, typical example does not comprise guar gum and Viscogum BE, Sudan Gum-arabic, tragacanth gum, starch (straight chain and side chain), agar, carrageenin, pectin, xanthan gum, konjaku, Mierocrystalline cellulose, chitin and chitosan.In addition or alternatively, the albumen Sodium Caseinate that milk can be used derivative and/or caseinhydrolysate and/or and homopolymer of amino acids, be such as polymerized L-glutamic acid.
Another embodiment of water treatment composition is effectively made up of for the poly aluminium sulfate silicate of primary water and the combination of polysaccharide or polysaccharide commercial, described polysaccharide is selected from following natural non-derived polysaccharide: polygalactomannan, glucomannan, α-D dextran, xyloglucan, arabinoxylan, inulin, the linear polysaccharide of α-(1-3) alternately and α-(1-4) galactopyranose units, the linear polysaccharide of α-D-Glucopyranose glucosides connector element, the linear polysaccharide of α-D-Glucopyranose glucosides connector element, the heteropolymer of the glucosides connector element of α-(1-4)-2-acetylaminohydroxyphenylarsonic acid 2-deoxidation-D-Glucopyranose and α-(1-4)-2-amino-2-deoxidation-D-Glucopyranose.Although comprehensively thoroughly, typical example does not comprise guar gum and Viscogum BE, Sudan Gum-arabic, tragacanth gum, starch (straight chain and side chain), agar, carrageenin, pectin, xanthan gum, konjaku, Mierocrystalline cellulose, chitin and chitosan.In addition or alternatively, the albumen Sodium Caseinate that milk can be used derivative and/or caseinhydrolysate and/or and homopolymer of amino acids, be such as polymerized L-glutamic acid.
Another embodiment of water treatment composition/formula is by the commercial effective polymerize aluminum chloride for primary water, chlorination hydroxyl aluminium, polyaluminium hydroxyl aluminium, sodium aluminate, polyaluminium sulfate, aluminum chlorate of polymerized silicic acid, two or more combination arbitrarily in poly aluminium sulfate silicate and Tai-Ace S 150, or the combination of the combination of all aluminum compounds and polysaccharide or polysaccharide forms, described polysaccharide is selected from following natural non-derived polysaccharide: polygalactomannan, glucomannan, α-D dextran, xyloglucan, arabinoxylan, inulin, the linear polysaccharide of α-(1-3) alternately and α-(1-4) galactopyranose units, the linear polysaccharide of α-D-Glucopyranose glucosides connector element, the linear polysaccharide of α-D-Glucopyranose glucosides connector element, the heteropolymer of the glucosides connector element of α-(1-4)-2-acetylaminohydroxyphenylarsonic acid 2-deoxidation-D-Glucopyranose and α-(1-4)-2-amino-2-deoxidation-D-Glucopyranose.Although comprehensively thoroughly, typical example does not comprise guar gum and Viscogum BE, Sudan Gum-arabic, tragacanth gum, starch (straight chain and side chain), agar, carrageenin, pectin, xanthan gum, konjaku, Mierocrystalline cellulose, chitin and chitosan.In addition or alternatively, the albumen Sodium Caseinate that milk can be used derivative and/or caseinhydrolysate and/or and homopolymer of amino acids, be such as polymerized L-glutamic acid.
Another embodiment of water treatment composition is by the commercial effective polymerize aluminum chloride for primary water, chlorination hydroxyl aluminium, polyaluminium hydroxyl aluminium, Tai-Ace S 150, sodium aluminate, polyaluminium sulfate, aluminum chlorate of polymerized silicic acid, the combination of the combination of poly aluminium sulfate silicate and polysaccharide or polysaccharide forms, described polysaccharide is selected from following natural non-derived polysaccharide: polygalactomannan, glucomannan, α-D dextran, xyloglucan, arabinoxylan, inulin, the linear polysaccharide of α-(1-3) alternately and α-(1-4) galactopyranose units, the linear polysaccharide of α-D-Glucopyranose glucosides connector element, the linear polysaccharide of α-D-Glucopyranose glucosides connector element, the heteropolymer of the glucosides connector element of α-(1-4)-2-acetylaminohydroxyphenylarsonic acid 2-deoxidation-D-Glucopyranose and α-(1-4)-2-amino-2-deoxidation-D-Glucopyranose.Although comprehensively thoroughly, typical example does not comprise guar gum and Viscogum BE, Sudan Gum-arabic, tragacanth gum, starch (straight chain and side chain), agar, carrageenin, pectin, xanthan gum, konjaku, Mierocrystalline cellulose, chitin and chitosan.In addition or alternatively, the albumen Sodium Caseinate that milk can be used derivative and/or caseinhydrolysate and/or and homopolymer of amino acids, be such as polymerized L-glutamic acid.
Another embodiment of water treatment composition comprises the guar gum aluminium mixture by being produced with the aqueous solution of dissolving guar gum by polymeric aluminum chlorides solution.Described composition solution be the polymeric aluminum chlorides solution of about 50% (wt/wt.) (such as, Kemira PAX-XL8 or PAX-XL6) and 50% (wt./wt.) 1% (wt./wt.) guar gum (such as, Univar guar gum 50, FCC grade).
Another embodiment of water treatment composition comprises by adding 100g polymerize aluminum chloride (such as, Kemira PAX-XL6,10.3%Al in the moisture guar gum (such as, Univar 50) lentamente to 250g 1% 2o 3) and mixing after add the guar gum aluminium mixture that the moisture alum of 150g (such as, Univar48% Tai-Ace S 150) produces.Described composition solution is 1% guar gum solution of the polymeric aluminum chlorides solution and 50% (wt./wt.) of about 20% (wt/wt.) and 48% alum liquor of 30% (wt./wt.).
Another embodiment of water treatment composition comprises by alum liquor and solid dissolvable are mixed in the guar gum of water the guar gum aluminium mixture produced.Described composition is the guar gum (such as, Univar guar gum 50, batches 10202008) of the Tai-Ace S 150 and 0.5% (wt./wt.) of about 24% (wt./wt.).
Some embodiments relate to by with water treatment composition process water for primary water with reduce the method for water turbidity, described water treatment composition is by guar gum and polymerize aluminum chloride, chlorination hydroxyl aluminium, polyaluminium hydroxyl aluminium, Tai-Ace S 150, sodium aluminate, polyaluminium sulfate, aluminum chlorate of polymerized silicic acid, poly aluminium sulfate silicate or their combination composition, so that by the insoluble suspension of collecting shear stable on filtration medium or in filtration medium and/or the water-soluble floss of part and aggregate and make their agglomerates and remove subsequently, described filtration medium allows the long-time use of easier more effective backwash and improvement.Described method comprise to containing insoluble suspension and/or the water-soluble dissolved material of part water in add the water treatment composition of significant quantity, and allow the insoluble or solvable matter interaction of water treatment composition and suspension to allow described material agglomerate and sedimentation under gravity and/or to rise to the surface.The material of agglomerate can by any one of various ways known in the art as filtration, gravity settling, centrifugal, cyclonic separator, vacuum filtration or separated from water by flotation and skimming.
Described filtration medium can comprise sand, diatomite, zeolite, carbon, non-woven or weave geotextile bag, filter cylinder bag, rope strainer, weave or non-woven polypropylene or polythene net, cellulosic fabric and metal or stainless steel sift.
The insoluble substance of described suspension can comprise as follows: microorganism is as bacterium, virus, protozoon (Cryptosporidium parvum oocysts suspended or giardia lamblia egg capsule); Protein, oil, fat, algae, organism comprise hydrocarbon and insoluble starch; Pharmaceutical cpd is as the material for the preparation of vaccine; Nutrition; The industrial fiber that business is useful; City has stable political situation the suspended sludge material in trade effluent; Dredging solid; Suspension material in mine tailing; Suspended metal oxide compound or metal oxide hydroxide, graphite granule; Carbon granule; The suspension material of oil/gas drilling and/or hydraulic fracturing operations; Suspended substance in the water in recreational water or aquaculture operation or aquarium; Be present in the suspended substance in building runoff; With the suspended substance be present in the water of refinery operations.
When to comprise insoluble suspension and/or part water soluble material water body in add the water treatment composition comprising polymerize aluminum chloride and guar gum time, compared to the flocculation efficiency observed when only adding polymerize aluminum chloride or the guar gum of same dose, now observe the flocculation efficiency of raising.
Another embodiment is for removing the method for phosphate-containing compound as orthophosphoric acid salt from water, the method comprises: in phosphatic water, add water treatment composition containing guar gum and polymerize aluminum chloride, chlorination hydroxyl aluminium, polyaluminium hydroxyl aluminium, Tai-Ace S 150, sodium aluminate, polyaluminium sulfate, aluminum chlorate of polymerized silicic acid, poly aluminium sulfate silicate or their combination to remove or to reduce phosphate concn, and is greater than only with the phosphate concn that the guar gum of same dose or polymerize aluminum chloride or alum can remove.Described phosphoric acid salt can be removed by filtration or gravity settling.
Accompanying drawing explanation
When by reference to the accompanying drawings with reference to following embodiment, the aforementioned aspect of the present invention and many associated advantages will be easier to understand.Described accompanying drawing is as follows:
The graphics description of Fig. 1 uses turbidity during the various sample of guar gum and polymerize aluminum chloride to reduce result; With
The graphics description of Fig. 2 to use turbidity when guar gum and polymerize aluminum chloride and guar gum and alum to reduce result.
Embodiment
By condense and flocculate and sedimentation afterwards, skim, filter, centrifugal or their arbitrary combination can remove suspended particle in aqueous fluid or soluble material.Cohesion generally includes and uses polyvalent mineral metal-salt as Tai-Ace S 150 (alum), aluminum chloride, polymerize aluminum chloride, chlorination hydroxyl aluminium, polyaluminium hydroxyl aluminium, ferric sulfate or iron(ic) chloride.
Flocculation agent has also used respectively as chitosan or polyacrylamide or has combined to process water with alum or polymerize aluminum chloride for reducing turbidity and/or remove suspended solid material.Although described combination can improve cohesion, flocculation and floss size, gained throw out still may show low sheraing intensity when experience is low to moderate middle pressure or stirs and be broken.Be included in the backwash cycle and be not attached to filtration medium but easily significant from the improvement backwash of the strainer of the insoluble material of the flocculation of filtration medium release.Use natural uncharged polysaccharide such as guar gum can provide easy and more effective backwash with containing aluminium flocculating agent as polymerize aluminum chloride, chlorination hydroxyl aluminium, polyaluminium hydroxyl aluminium, Tai-Ace S 150, sodium aluminate, polyaluminium sulfate, aluminum chlorate of polymerized silicic acid, poly aluminium sulfate silicate or they some combine combination.Other natural uncharged polysaccharide can comprise Viscogum BE, starch, konjaku and Mierocrystalline cellulose.
For primary water, reduce water turbidity and from water, remove the water treatment composition used in phosphatic method and comprise containing aluminium flocculating agent or containing the combination of aluminium flocculating agent and the combination of natural uncharged polysaccharide or natural uncharged polysaccharide.Optionally, described water treatment composition can comprise water.Water treatment composition can be applied as solution or with dry solid form.Can apply together with solution or dry solid form or complex form with natural uncharged polysaccharide containing aluminium flocculating agent.Can apply respectively containing aluminium flocculating agent and natural uncharged polysaccharide, be solution or dry solid form separately.Further describe as follows containing aluminium flocculating agent and natural uncharged polysaccharide.
containing aluminium flocculating agent
Commercially available containing aluminium flocculating agent.Aluminum contained compound as the aqueous solution or can do (solid) powder or particle form application.Following material can be applied alone or in combination: polymerize aluminum chloride, chlorination hydroxyl aluminium, polyaluminium hydroxyl aluminium, Tai-Ace S 150, sodium aluminate, polyaluminium sulfate, aluminum chlorate of polymerized silicic acid, poly aluminium sulfate silicate.
Tai-Ace S 150 has general formula Al 2(SO 4) 3xH 2o, wherein X is 13,14,15,16,17,18 according to reports or combines.Solution can be defined by aluminium content or according to equivalent aluminum oxide A 2o 3express.
Polymerize aluminum chloride can have general formula Al n(OH) mcl ( 3n-m), wherein 0<m≤3n, and n>=1.See U.S. Patent No. 7,846,318, at this by reference to clearly introducing.This material can form polymkeric substance in water.PH correlation m/ (3n).The basicity of flocculation agent is higher, and basicity consumption is lower, and therefore, the pH of water reduces also fewer.The basicity of commercially available polymerize aluminum chloride can be about 15-83%w/w.Basicity can be low, in or high alkalinity.Alkalinity ranges can be about 10-83%, and any range can drawn in the middle of this, as start from 10%, 20%, 30%, 40%, 50%, 60% or 70% and end at 20%, 30%, 40%, 50%, 60%, 70 or 80% scope.
Some polymerize aluminum chlorides can have sulfate radical.In the literature, these compounds are sometimes referred to as polymerize aluminum chloride, and sometimes also referred to as polyaluminium Tai-Ace S 150.The general formula of some polymerize aluminum chlorides (polyaluminium Tai-Ace S 150) can be Al noH m(SO 4) kcl (3n-m-k).Sulfate radical can be about 2-3wt.%.
Chlorination hydroxyl aluminium is the name of the polymerize aluminum chloride of wherein n=2 and m=5.Chlorination hydroxyl aluminium can have general formula A1 2c1 (OH) 5, it has the basicity of about 83%.
What be applicable to can obtain from Kemira chemical Inc. with title PAX containing aluminium flocculating agent.
polysaccharide
The polysaccharide of composition water treatment composition can comprise the combination of following natural non-derived polysaccharide: polygalactomannan; Glucomannan; α-D dextran; Xyloglucan; Arabinoxylan; Inulin; The linear polysaccharide of α-(1-3) alternately and α-(1-4) galactopyranose units; The linear polysaccharide of α-D-Glucopyranose glucosides connector element; The linear polysaccharide of α-D-Glucopyranose glucosides connector element; The heteropolymer of the glucosides connector element of α-(1-4)-2-acetylaminohydroxyphenylarsonic acid 2-deoxidation-D-Glucopyranose and α-(1-4)-2-amino-2-deoxidation-D-Glucopyranose.Although comprehensively thoroughly, typical example does not comprise guar gum and Viscogum BE, Sudan Gum-arabic, tragacanth gum, starch (straight chain and side chain), agar, carrageenin, pectin, xanthan gum, konjaku, Mierocrystalline cellulose, chitin and chitosan.
Natural uncharged polysaccharide comprises guar gum.Guar gum (guar gum) is the polygalactomannan of straight chain, and wherein semi-lactosi is located at interval on mannosyl units.β 1-4 glucosides butt coupling mannosyl units is connected by α 1-6 with galactose side.Applicable guar gum for using can obtain from Univar Inc..Other natural uncharged polysaccharide can comprise Viscogum BE, starch, konjaku and Mierocrystalline cellulose.
Comprise the steps: to containing adding the natural uncharged polysaccharide containing aluminium flocculating agent and collaborative amount being selected from polymerize aluminum chloride, chlorination hydroxyl aluminium, polyaluminium hydroxyl aluminium, Tai-Ace S 150, sodium aluminate, polyaluminium sulfate, aluminum chlorate of polymerized silicic acid, poly aluminium sulfate silicate or their combination in the water of material for primary water or some embodiments of removing phosphatic method from water; Agglomerate is formed in the water comprising described material, aluminum contained compound and polysaccharide; With from water, remove agglomerate to remove described material from water.
In some embodiments, natural uncharged polysaccharide is guar gum.
In some embodiments, interpolation comprises the solution added containing aluminium flocculating agent and guar gum containing aluminium flocculating agent and polysaccharide.
In some embodiments, add containing aluminium flocculating agent and polysaccharide comprise add solid form containing aluminium flocculating agent and guar gum.
In some embodiments, containing aluminium flocculating agent be substantially the polymerize aluminum chloride of 100wt%.
In some embodiments, containing aluminium flocculating agent be substantially the chlorination hydroxyl aluminium of 100wt%.
In some embodiments, containing aluminium flocculating agent be substantially the polyaluminium hydroxyl aluminium of 100wt%.
In some embodiments, containing aluminium flocculating agent be substantially the Tai-Ace S 150 of 100wt%.
In some embodiments, containing aluminium flocculating agent be substantially the sodium aluminate of 100wt%.
In some embodiments, containing aluminium flocculating agent be substantially the polyaluminium sulfate of 100wt%.
In some embodiments, containing aluminium flocculating agent be substantially the aluminum chlorate of polymerized silicic acid of 100wt%.
In some embodiments, containing aluminium flocculating agent be substantially the poly aluminium sulfate silicate of 100wt%.
In some embodiments, the solution of polymerize aluminum chloride and water is comprised containing aluminium flocculating agent.
In some embodiments, the solution of chlorination hydroxyl aluminium and water is comprised containing aluminium flocculating agent.
In some embodiments, the solution of polyaluminium hydroxyl aluminium and water is comprised containing aluminium flocculating agent.
In some embodiments, the solution of Tai-Ace S 150 and water is comprised containing aluminium flocculating agent.
In some embodiments, the solution of sodium aluminate and water is comprised containing aluminium flocculating agent.
In some embodiments, the solution of polyaluminium sulfate and water is comprised containing aluminium flocculating agent.
In some embodiments, the solution of aluminum chlorate of polymerized silicic acid and water is comprised containing aluminium flocculating agent.In some embodiments, the solution of poly aluminium sulfate silicate and water is comprised containing aluminium flocculating agent.
In some embodiments, be by having general formula Al containing aluminium flocculating agent n(OH) mcl (3n-m)the solution made of compound, wherein 0<m≤3n, and n>=1.
In some embodiments, be by having general formula Al containing aluminium flocculating agent 2(SO 4) 3xH 2the solution that the compound of O is made.
In some embodiments, be by having general formula A1 containing aluminium flocculating agent 2c1 (OH) 5the solution made of compound.
In some embodiments, polysaccharide is about 1:34 with the ratio containing aluminium flocculating agent.
In some embodiments, polysaccharide is about 1:48 with the ratio containing aluminium flocculating agent.
In some embodiments, polysaccharide is about 1:100 with the ratio containing aluminium flocculating agent for about 1:10-.
In some embodiments, add as guar gum aluminium mixture containing aluminium flocculating agent and polysaccharide.
In some embodiments, guar gum aluminium mixture is by comprising to solid containing adding solid guar in aluminium flocculating agent and making to solid guar with containing the method adding water in aluminium flocculating agent.
In some embodiments, aluminum contained compound adds together with polysaccharide.
In some embodiments, aluminum contained compound and polysaccharide add respectively.
In some embodiments, the phosphoric acid salt be removed is orthophosphoric acid salt.
In some embodiments, the described material in water comprises: the egg capsule of microorganism, bacterium, virus, protozoon, Cryptosporidium parvum oocysts suspended, giardia lamblia; Protein, oil, fat, algae, hydrocarbon, metal oxide, metal oxide hydroxide, insoluble starch; Medicine, nutrition; Fiber, poly-aramid fiber, dredging solid; The suspension material of the suspension material in mine tailing, graphite granule, carbon granule, oil/gas drilling or waterfrac treatment; Suspended substance in the water in recreational water or aquaculture operation or aquarium; Be present in the suspended substance in building runoff; With the suspended substance be present in the water of refinery operations.
In some embodiments, polysaccharide is selected from Viscogum BE, starch, konjaku or cellulosic natural uncharged polysaccharide.
Some embodiments of the method for primary water comprise the steps: to add in the water of phosphate-containing compound the natural uncharged polysaccharide containing aluminium flocculating agent and collaborative amount being selected from polymerize aluminum chloride, chlorination hydroxyl aluminium, polyaluminium hydroxyl aluminium, Tai-Ace S 150, sodium aluminate, polyaluminium sulfate, aluminum chlorate of polymerized silicic acid, poly aluminium sulfate silicate or their combination; Agglomerate is formed in comprising phosphate compounds, containing the water of aluminium flocculating agent and polysaccharide; With from water, remove agglomerate to remove described phosphate compounds from water.
In some embodiments, phosphate compounds is orthophosphoric acid salt.
In some embodiments, polysaccharide is guar gum.
In some embodiments, aluminum contained compound is polymerize aluminum chloride.
In some embodiments, aluminum contained compound is chlorination hydroxyl aluminium.
In some embodiments, aluminum contained compound is polyaluminium hydroxyl aluminium.
In some embodiments, aluminum contained compound is Tai-Ace S 150.
In some embodiments, aluminum contained compound is sodium aluminate.
In some embodiments, aluminum contained compound is polyaluminium sulfate.
In some embodiments, aluminum contained compound is aluminum chlorate of polymerized silicic acid.
In some embodiments, aluminum contained compound is poly aluminium sulfate silicate.
In some embodiments, polysaccharide is about 1:34 with the ratio containing aluminium flocculating agent.
In some embodiments, polysaccharide is about 1:48 with the ratio containing aluminium flocculating agent.
In some embodiments, polysaccharide is about 1:100 with the ratio containing aluminium flocculating agent for about 1:10-.
Embodiment
Embodiment 1
(confirming that guar gum and Tai-Ace S 150 are reducing the synergy in turbidity)
1, the water of four glass scintillation (glass) bottle each loading 20ml backflow/generation is made
2, marking a bottle is " contrast ", cover lid and placement one side
3, the guar gum solution of one or two 1wt.%, cover lid and concussion is added to two in three washouts
4, to without the 48wt.% Tai-Ace S 150/aqueous solution of the 3rd bottle of guar gum and the minim number such as step #3 is used that has in two of 1wt.% guar gum solution bottles to add, cover lid and concussion
5, under environment T, again shake flicker (glass) bottle of four cover lids and place on one side
6, flocculation and Clarification Performance is observed.
Table 3: initial alum/guar gum tank test key and result
result:
Only with not observing visible flocculation or sedimentation in the generation water sample of alum or guar gum process.Formerly observe obvious sedimentation with in guar gum and the sample then with alum process.Not change in the untreated samples being labeled as " contrast ".
discuss:
When alum and guar gum combinationally use, there is certain synergy.Only sample can not be made to become limpid with the sample of alum process, for only with the sample of guar gum process too.The sample only comprising alum and guar gum bears results.
Embodiment 2
(confirming that guar gum and Tai-Ace S 150 are reducing the synergy in phosphoric acid salt)
step:
The water of orthophosphoric acid salt is mixed by adding 1.719ml phosphate standard solution (PAS-STM-803902 from phosphoric acid salt step) preparation in 1 liter of deionized water.The moisture that 100ml mixes orthophosphoric acid salt is fitted in plastic sample cup.
1, Tai-Ace S 150 (aluminum sulfate hydrate of 48wt.% uses the pure water (undiluted) of 52wt.%).
The guar gum aluminium mixture of 2, mixture E-prepared in the guar gum of water by mixing alum liquor and solid dissolvable.Said composition is the guar gum (Univar guar gum 50) of the alum and 0.5% (wt./wt.) of about 24% (wt./wt.).
3, mix to 100ml and place mixing in the water of orthophosphoric acid salt of different time sections and add 100 microlitre Tai-Ace S 150 or mixture E.Control sample only receives the water of 100 microlitres.After different time sections, 12ml process water sample by 0.45 micron filter, be 1:10 with deionized water dilution and rest the head on HACH reagent PhosVer3 with 1 powder and react, and determines phosphate concn with the measurement of HACH spectrophotometer spectral luminosity.In other experiment, without the phosphate concn filtering test processes water.
result:
As shown in Table 1, compared to untreated control sample, alum and mixture E reduce phosphate concn 24% and 27% respectively.
Table 1. is the phosphate concn of filtration treatment water after overnight culture at room temperature
Mix to the 100ml be included in 100ml graduated cylinder in the water of orthophosphoric acid salt and add 100 microlitre alum or mixture E and mix.Leave standstill 2 hours under RT (room temperature) after, from top (100-90ml), middle part (50-40ml) or bottom (20-10ml) water sampling of graduated cylinder.The dilution of water sample deionized water is 1:10 and measures phosphate concn without filtration powder pillow HACH reagent PhosVer3 spectral luminosity.
Result is presented in following table 2.
The phosphate concn of table 2. process water of different positions sampling in graduated cylinder.Contrast phosphoric acid salt solution comprises 10ppm
conclusion
When using the alum of about half amount, it is similar to alum that mixture E reduces orthophosphoric acid salt concentration.
Embodiment 3
(testing various PAC with guar gum)
product test method:
1, ((PTI ID:10943F) prepares Arizona test powders solution in 10 liters of deionized waters, to mix 200 grams of Arizona fine powders.
2, in Arizona test powders solution, adding 1N HC1 makes pH be down to 7.2 from 9.4.
3,500ml Arizona test powders solution is poured into independent 500ml bottle neutralization and be labeled as the guar gum/PAC preparation added respectively.
4, in 500ml Arizona test powders solution, add guar gum/PAC preparation to the ultimate density comprising different PAC is respectively 50ppm and mixing about 2 minutes, then sedimentation 10 minutes (for often kind of preparation, guar gum is identical with the concentration of aluminium).After sedimentation 10 minutes, measure the turbidity of often kind of Arizona test powders solution with respective guar gum/PAC preparation process.Contrast is about 8000NTU with the turbidity of untreated Arizona test powders solution.
The preparation 29-RT that the result of Fig. 1 clearly shows basicity 70% turbidity shows the preparation 30RT of the preparation 28RT of specific alkalinity 75% and basicity 51% is obviously better reducing.Value represents five mean values repeated.
sample description:
240-48-28-RT
0.5 gram of guar gum (Univar, batch #10202008) is added and at room temperature as powder store in 12/20/12 to 17.22 gram of Grade 28PAC.02/06/13 after 4 weeks, add 82.28 grams of deionized waters and mix about 2 hours.Then keep solution and as liquid storage 27 days, then test.The basicity of Grade 28PAC is 75% and A1 2o 3content be 30.2%.
240-48-29-RT
0.5 gram of guar gum is added and at room temperature as powder store in 12/20/12 to 16.99 gram of Grade 29PAC.02/06/13 after 4 weeks, add 82.51 grams of deionized waters and mix about 2 hours.Then keep solution and as liquid storage 27 days, then test.The basicity of Grade29PAC is 70% and A1 2o 3content be 30.6%.
240-48-30-RT liquid
0.5 gram of guar gum is added and at room temperature as powder store in 12/20/12 to 16.99 gram of Grade 30PAC.02/06/13 after 4 weeks, add 82.51 grams of deionized waters and mix about 2 hours.Then keep solution and as liquid storage 27 days, then test.The basicity of Grade30PAC is 51% and A1 2o 3content be 30.6%.
result:
The figure line of Fig. 1 gives result.Turbidity NTU represents.It is the most effective that sample 29@RT reduces turbidity.Under 50ppm, reduce turbidity compared to 28@RT and reduce turbidity to about 700NTU to about 300NTU and 30@RT, 29@RT reduce turbidity to about 100NTU.
Embodiment 4
From pressure break well water (the being sometimes referred to as Drilling Water) sample of Bear Creek Services (Contly 27-H#134-H#1).Join in 20ml sample with metered amount, mixing, then place 5 minutes, measure turbidity afterwards.Result provides in following table 3:
20ml sample Contrast 1% guar gum PAX-XL6 213-133-B
Metered amount 0 25mg 25mg 50mg
NTU (5 minutes) 740 760 860 320
Formula 213-133-B is the Kemira PAX-XL6 polymerize aluminum chloride (basicity 55%, A1 of 50wt.% 2o 310.3%, Al 5.31%, sulfate radical 2.5%) and 1% aqueous guar glue solution (Univar guar gum 45) of 50wt.%.In order to preparing product, in guar gum solution, slowly add PAC and mix to obtain uniform solution.
Embodiment 5
(test guar gum/PAC vs. guar gum/alum)
product test method:
1, ((PTI ID:10943F) is to prepare Arizona test powders solution in 10 liters of deionized waters, to mix 200 grams of Arizona fine powders.
2, in Arizona test powders solution, adding 1N HC1 makes pH be down to 7.2 from 9.4.
3,500ml Arizona test powders solution is poured in independent 500ml bottle.
4, Arizona test powders solution to the ultimate density that guar gum/PAC preparation and guar gum/Alum formulations join independent 500ml decile is separately 50ppm, and then mixes about 2 minutes and then sedimentation 10 minutes.P-50 preparation is Kemira PAX-XL8 polymerize aluminum chloride (basicity ~ 70%, the A1 of 50wt.% 2o 310%, Al 5.5%) and 1% aqueous guar glue solution of 50wt.%.A48 preparation is identical with aforementioned mixture E.After sedimentation 10 minutes, measure the turbidity of the Arizona test powders solution of often kind of use guar gum separately/PAC preparation process.Contrast is about 8000NTU with the turbidity of untreated Arizona test powders solution.
Fig. 2 provides result, and wherein numerical value represents the mean value repeated for five times.Result clearly illustrates that P-50 preparation shows obviously better than A48 (mixture E) preparation on reduction turbidity.More about 180NTU and 1000NTU.
Although have illustrated and described embodiment, should understand and can make various change down without departing from the spirit and scope of the present invention.

Claims (47)

1., for primary water or remove a phosphatic method from water, described method comprises:
To containing adding the natural uncharged polysaccharide containing aluminium flocculating agent and collaborative amount being selected from polymerize aluminum chloride, chlorination hydroxyl aluminium, polyaluminium hydroxyl aluminium, Tai-Ace S 150, sodium aluminate, polyaluminium sulfate, aluminum chlorate of polymerized silicic acid, poly aluminium sulfate silicate or their combination in the water of material;
Agglomerate is formed in the water comprising described material, aluminum contained compound and polysaccharide; With
Agglomerate is removed to remove described material from water from water.
2. the process of claim 1 wherein that described natural uncharged polysaccharide is guar gum.
3. the process of claim 1 wherein to add and comprise containing aluminium flocculating agent and polysaccharide the solution added containing aluminium flocculating agent and guar gum.
4. the process of claim 1 wherein add containing aluminium flocculating agent and polysaccharide comprise add solid form containing aluminium flocculating agent and guar gum.
5. be the polymerize aluminum chloride of 100wt% substantially containing aluminium flocculating agent described in the process of claim 1 wherein.
6. be the chlorination hydroxyl aluminium of 100wt% substantially containing aluminium flocculating agent described in the process of claim 1 wherein.
7. be the polyaluminium hydroxyl aluminium of 100wt% substantially containing aluminium flocculating agent described in the process of claim 1 wherein.
8. be the Tai-Ace S 150 of 100wt% substantially containing aluminium flocculating agent described in the process of claim 1 wherein.
9. be the sodium aluminate of 100wt% substantially containing aluminium flocculating agent described in the process of claim 1 wherein.
10. be the polyaluminium sulfate of 100wt% substantially containing aluminium flocculating agent described in the process of claim 1 wherein.
11. the process of claim 1 wherein that described is the aluminum chlorate of polymerized silicic acid of 100wt% substantially containing aluminium flocculating agent.
12. the process of claim 1 wherein that described is the poly aluminium sulfate silicate of 100wt% substantially containing aluminium flocculating agent.
13. the process of claim 1 wherein the described solution comprising polymerize aluminum chloride and water containing aluminium flocculating agent.
14. the process of claim 1 wherein the described solution comprising chlorination hydroxyl aluminium and water containing aluminium flocculating agent.
15. the process of claim 1 wherein the described solution comprising polyaluminium hydroxyl aluminium and water containing aluminium flocculating agent.
16. the process of claim 1 wherein the described solution comprising Tai-Ace S 150 and water containing aluminium flocculating agent.
17. the process of claim 1 wherein the described solution comprising sodium aluminate and water containing aluminium flocculating agent.
18. the process of claim 1 wherein the described solution comprising polyaluminium sulfate and water containing aluminium flocculating agent.
19. the process of claim 1 wherein the described solution comprising aluminum chlorate of polymerized silicic acid and water containing aluminium flocculating agent.
20. the process of claim 1 wherein the described solution comprising poly aluminium sulfate silicate and water containing aluminium flocculating agent.
21. the process of claim 1 wherein that described is by having general formula Al containing aluminium flocculating agent n(OH) mcl (3n-m)the solution made of compound, wherein 0<m≤3n, and n>=1.
22. the process of claim 1 wherein that described is by having general formula Al containing aluminium flocculating agent 2(SO 4) 3xH 2the solution that the compound of O is made.
23. the process of claim 1 wherein that described is by having general formula A1 containing aluminium flocculating agent 2c1 (OH) 5the solution made of compound.
24. the process of claim 1 wherein that polysaccharide is about 1:34 with the ratio containing aluminium flocculating agent.
25. the process of claim 1 wherein that polysaccharide is about 1:48 with the ratio containing aluminium flocculating agent.
26. the process of claim 1 wherein that polysaccharide is about 1:100 with the ratio containing aluminium flocculating agent for about 1:10-.
27. the process of claim 1 wherein and to add containing aluminium flocculating agent and polysaccharide as guar gum aluminium mixture.
The method of 28. claims 27, wherein said guar gum aluminium mixture is by comprising to solid containing adding solid guar in aluminium flocculating agent and making to solid guar with containing the method adding water in aluminium flocculating agent.
29. the process of claim 1 wherein that described aluminum contained compound adds together with polysaccharide.
30. the process of claim 1 wherein that described aluminum contained compound and polysaccharide add respectively.
31. the process of claim 1 wherein that described phosphoric acid salt is orthophosphoric acid salt.
32. the process of claim 1 wherein that the described material in water comprises: microorganism, bacterium, virus, protozoon, Cryptosporidium parvum oocysts suspended, giardia lamblia egg capsule; Protein, oil, fat, algae, hydrocarbon, metal oxide, metal oxide hydroxide, insoluble starch; Medicine, nutrition; Fiber, poly-aramid fiber, dredging solid; The suspension material of the suspension material in mine tailing, graphite granule, carbon granule, oil/gas drilling or waterfrac treatment; Suspended substance in the water in recreational water or aquaculture operation or aquarium; Be present in the suspended substance in building runoff; With the suspended substance be present in the water of refinery operations.
33. the process of claim 1 wherein that described polysaccharide is selected from Viscogum BE, starch, konjaku or cellulosic natural uncharged polysaccharide.
34. 1 kinds of primary water methods, described method comprises:
The natural uncharged polysaccharide containing aluminium flocculating agent and collaborative amount being selected from polymerize aluminum chloride, chlorination hydroxyl aluminium, polyaluminium hydroxyl aluminium, Tai-Ace S 150, sodium aluminate, polyaluminium sulfate, aluminum chlorate of polymerized silicic acid, poly aluminium sulfate silicate or their combination is added in the water of phosphate-containing compound;
Agglomerate is formed in comprising phosphate compounds, containing the water of aluminium flocculating agent and polysaccharide; With
Agglomerate is removed to remove described phosphate compounds from water from water.
The method of 35. claims 34, wherein said phosphate compounds is orthophosphoric acid salt.
The method of 36. claims 34, wherein said polysaccharide is guar gum.
The method of 37. claims 34, wherein said aluminum contained compound is polymerize aluminum chloride.
The method of 38. claims 34, wherein said aluminum contained compound is chlorination hydroxyl aluminium.
The method of 39. claims 34, wherein said aluminum contained compound is polyaluminium hydroxyl aluminium.
The method of 40. claims 34, wherein said aluminum contained compound is Tai-Ace S 150.
The method of 41. claims 34, wherein said aluminum contained compound is sodium aluminate.
The method of 42. claims 34, wherein said aluminum contained compound is polyaluminium sulfate.
The method of 43. claims 34, wherein said aluminum contained compound is aluminum chlorate of polymerized silicic acid.
The method of 44. claims 34, wherein said aluminum contained compound is poly aluminium sulfate silicate.
The method of 45. claims 34, wherein polysaccharide is about 1:34 with the ratio containing aluminium flocculating agent.
The method of 46. claims 34, wherein polysaccharide is about 1:48 with the ratio containing aluminium flocculating agent.
The method of 47. claims 34, wherein polysaccharide is about 1:100 with the ratio containing aluminium flocculating agent for about 1:10-.
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Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9222065B2 (en) * 2013-10-01 2015-12-29 Pukyong National University Industry-University Cooperation Foundation Method for photoculturing and harvesting microalgae
CA2941943C (en) * 2014-03-12 2023-04-04 Ecolab Usa Inc. Waste water decontamination
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4565635A (en) * 1981-11-16 1986-01-21 Rhone-Poulenc Specialites Chimiques Flocculation of aqueous media with novel flocculating adjuvant
JPH0474592A (en) * 1990-07-17 1992-03-09 Taki Chem Co Ltd Water treatment method
US6428705B1 (en) * 1996-11-26 2002-08-06 Microbar Incorporated Process and apparatus for high flow and low pressure impurity removal
US20030196944A1 (en) * 2000-11-14 2003-10-23 Tanner John D. Water purifying kits
US20040108277A1 (en) * 2001-07-20 2004-06-10 Ionics, Incorporated Reverse osmosis pretreatment using low pressure filtration
US20050242043A1 (en) * 2004-04-30 2005-11-03 Nichols Everett J Method for removing Cryptosporidium oocysts from water
CN1843961A (en) * 2006-05-19 2006-10-11 北京工业大学 Composite dephosphorizing coagulant dedicated for drinking water
CN102344192A (en) * 2010-12-13 2012-02-08 新疆德蓝股份有限公司 Preparation method of special-purposed coagulant used for treating printing and dyeing waste water

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3082173A (en) * 1958-08-04 1963-03-19 Howard J Horvitz Coagulating aid and method of treating water therewith
FR2445299A1 (en) * 1978-12-28 1980-07-25 Rhone Poulenc Ind FLOCCULATION ADDITIVE FOR WATER PURIFICATION AND COMPOSITION CONTAINING SAID ADJUVANT
AU646733B2 (en) * 1992-01-30 1994-03-03 Betzdearborn Inc. Cationic polyelectrolyte demulsifier and coagulator
US5433863A (en) * 1993-11-17 1995-07-18 Nalco Chemical Company Method for clarifying wastewater containing surfactants
CA2229266C (en) * 1995-09-18 2001-10-16 Delta Chemical Corporation Polyaluminum chlorides and polyaluminum chlorosulfates methods and compositions
US5965027A (en) * 1996-11-26 1999-10-12 Microbar Incorporated Process for removing silica from wastewater
JP2001511064A (en) * 1997-02-10 2001-08-07 テトラ・ベルケ・デーエル・エルエーエル・エヌアーテー・ウルリヒ・ベンシュ・ゲーエムベーハー A two-component agent for purifying water in a tropical fish tank
US6458268B1 (en) * 1999-06-22 2002-10-01 Ecolab Inc. Industrial waste water treatment cleaning apparatus
EP1439898A1 (en) * 2001-11-01 2004-07-28 AKZO Nobel N.V. Treatment of polyaluminium compounds
US20030213752A1 (en) * 2002-05-16 2003-11-20 Halliburton Energy Services, Inc. Alum pellets
HUE045022T2 (en) * 2004-09-27 2019-12-30 Special Water Patents B V Methods and compositions for treatment of water
US7329356B2 (en) * 2004-12-21 2008-02-12 Aquagems Laboratories, Llc Flocculating agent for clarifying the water of man-made static water bodies
JP2006297189A (en) * 2005-04-15 2006-11-02 Car Muscat:Kk Floccuration/sedimentation composition and waste water purifying method using the same
US7931822B2 (en) * 2006-03-03 2011-04-26 Inland Environmental Resources, Inc. Compositions and methods for wastewater treatment
US8919573B2 (en) * 2007-10-25 2014-12-30 David Capehart Water purification system and method
CA2731608C (en) * 2008-07-23 2016-10-18 Aquero Company, Llc Flotation and separation of flocculated oils and solids from waste waters
US20100196415A1 (en) * 2009-02-05 2010-08-05 Alcon Research, Ltd. Process for purifying guar

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4565635A (en) * 1981-11-16 1986-01-21 Rhone-Poulenc Specialites Chimiques Flocculation of aqueous media with novel flocculating adjuvant
JPH0474592A (en) * 1990-07-17 1992-03-09 Taki Chem Co Ltd Water treatment method
US6428705B1 (en) * 1996-11-26 2002-08-06 Microbar Incorporated Process and apparatus for high flow and low pressure impurity removal
US20030196944A1 (en) * 2000-11-14 2003-10-23 Tanner John D. Water purifying kits
US20040108277A1 (en) * 2001-07-20 2004-06-10 Ionics, Incorporated Reverse osmosis pretreatment using low pressure filtration
US20050242043A1 (en) * 2004-04-30 2005-11-03 Nichols Everett J Method for removing Cryptosporidium oocysts from water
CN1843961A (en) * 2006-05-19 2006-10-11 北京工业大学 Composite dephosphorizing coagulant dedicated for drinking water
CN102344192A (en) * 2010-12-13 2012-02-08 新疆德蓝股份有限公司 Preparation method of special-purposed coagulant used for treating printing and dyeing waste water

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104926031A (en) * 2015-05-28 2015-09-23 重庆大学 Method for reducing content of total phosphorus in wastewater
CN105967350A (en) * 2016-07-07 2016-09-28 安徽国能亿盛环保科技有限公司 Enzyme-containing sewage treating agent and preparation method thereof
CN106145296A (en) * 2016-08-31 2016-11-23 中国石油集团川庆钻探工程有限公司 A kind of composite flocculation agent preparation method for fracturing outlet liquid reuse pre-treatment
CN109906205A (en) * 2016-10-27 2019-06-18 荷兰联合利华有限公司 The cleansing composition for the water for being suitable for laundry is obtained for clarifying sewage
CN106745359A (en) * 2016-11-25 2017-05-31 南宁市黑晶信息技术有限公司 One kind dyeing effluent purifying agent and preparation method thereof
CN106723287A (en) * 2017-03-08 2017-05-31 湖北中烟工业有限责任公司 A kind of preparation method of papermaking-method reconstituted tobaccos retention and drainage aid agent
CN106723287B (en) * 2017-03-08 2018-12-04 湖北中烟工业有限责任公司 A kind of preparation method of papermaking-method reconstituted tobaccos retention and drainage aid agent
CN108726653A (en) * 2018-06-22 2018-11-02 杜晓华 A kind of compound sewage decolorization flocculation agent and its application method
CN114044564A (en) * 2021-01-29 2022-02-15 合肥工业大学智能制造技术研究院 Preparation method of dextran-based flocculant and method for clarifying fish-farming circulating water by using dextran-based flocculant
CN113006195A (en) * 2021-03-05 2021-06-22 广州隆盛景观建设有限公司 Environment-friendly garden landscape rainwater treatment and reuse method
CN113371804A (en) * 2021-07-27 2021-09-10 新疆水佳源科技有限公司 Efficient coagulant aid suitable for sewage treatment system and preparation method thereof
CN114604835A (en) * 2022-05-12 2022-06-10 矿冶科技集团有限公司 Natural plant settling agent and application and use method thereof

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